Cluster effects in high-order harmonics generated by ultrashort light pulses
Cluster effects in high-order harmonics generated by ultrashort light pulses
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DOI：
10.1063/1.1888053
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发表时间：
2005-03
影响因子：
4
通讯作者：
C. Vozzi;M. Nisoli;J. Caumes;G. Sansone;S. Stagira;S. Silvestri;M. Vecchiocattivi;D. Bassi;M. Pascolini;L. Poletto;P. Villoresi;G. Tondello
中科院分区：
文献类型：
--
作者：
C. Vozzi;M. Nisoli;J. Caumes;G. Sansone;S. Stagira;S. Silvestri;M. Vecchiocattivi;D. Bassi;M. Pascolini;L. Poletto;P. Villoresi;G. Tondello
研究了25飞秒激光脉冲驱动下氩原子从气态到团簇的高次谐波产生。在集群的存在下观察到的谐波截止显示了相当大的扩展相对于气相。谐波光谱作为集群大小的函数进行了研究，显示存在一个最佳的集群尺寸，最大限度地提高谐波光子产额。
High-order harmonic generation in argon driven by 25-fs-light pulses is investigated from the gaseous to the cluster regime. The harmonic cutoff observed in presence of clusters shows a considerable extension with respect to the gaseous phase. Harmonic spectra are investigated as a function of cluster size, showing the existence of an optimal cluster dimension, which maximizes the harmonic photon yield.